Improvement in bungs



W. H. STEWART. Bung.

N0. 222,094. Patented Nov. 25,1879.

UNI'IED STA'I'ES PATENT OFFICE.

WILLIAM H. STEWART, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN BUNGS.

Specification forming part 0f Letters Patent N0. 222,094, dated November 25, 1879; application filed August 1, 1879.

T0 all whom z't mag; concern:

Be. it known that I, WILLIAM H. STEWART, of the city of Brooklyn, coanty 0f Kings, and State of New York, have invented a new and aseful Improvement in Bangs for Gasks and other v essels ased f0r transporting liqaids, Whieh improwzment is sei: forth in the followin g specification and aecom panyin g drawings,

in which- Figare 1 is a. vertical sectiona-l view of tbe parts 0f the bang as they appea-r in actaal ase. in a cask 0r barrel. a represents the elastic bang With an aperture inclosing a plag, c, inserted within the apertare of the bang. b b represent a metallic plate 0r disk moldecl into 0r attaehecl on t-he elastic bang. d represents a section of t-he cask 0r barre1 in which the bang is inserted when in use.

Fig. 2 represents a plan view of the elastic bang a With apertare.

Fig. 3 is a sectional view of the bang a, the metallic plate 0r disk b b, the plag c, the eask d, an(l shows the method of extracting the bang from the cask 0r barrel by ehe hook e.

In making myimproved elastic bang, I prefer t0 ase rubber compositionof tl1e kind commonly ased in making brewers hose. 'Ihe composition shoald confain no alkalies 0r other sabstances that will be affeeted by acids. Of this material I inake an elastic bang having tapering longitudinal 'sarfaces and lateral plane sarfaces, similar in shape to the wooden bang commonly ased, and 0f safficient depth and diameter t0 fit closely within t.l1e bang-hole 0f the cask orbarrel. Throagh the bang I have a, vertical apertare 0f a size t0 admit; the plag cthree-qaarters 0f an inel1 I find 130 be saffieient for venting parposes.

.The plag 0 may be macle 0f the s2une material as the bang, and may be attached 150 the bang by a link 01 any other saitable device.

In extracting bangs heretofore made 0f this composition fr0m easks 01 barrels, the h0ok e, When in eontact with the bang, chafes and tears the coxnposition t0 an extent that il: soon destroys the asefalness 0f the bang.

T0 avoid this evil is the object; of my present invention. I. constract a metallie platze 0r disk below the oater face, and within 01 attached to the bang, with one of its inner 01 lower 'sarfaces exposed. 130 receiv6 the bearin g of the hook, and to form a gaamd f0r protecting the bang fiom injary. This metallic plate ma-y be made of any 0f the well-known metals, am]. may be molded. in the eomposition when the bang is in process of manafactare, 01 may be attacbed by any saitable device, the object being 130 protecb the composition from injary by eontact With the extraotinghook.

In praetieal ase 1 inserb the plag c within the aperture of tl1e elastic bang, and then insert the bang a within the apertare 0f the eask.

When the liqaids are t0 be drawn ofi from the cask the plag c is driven down amd oat of the bang int0 tl1e cask, t0 give vent or ad- 1nit air.

\Vhen the cask is to be refilled, the hook 0 is insertegl down throagh the apertare 0f the bang, and reaebes aader and. rests against the metallic plate or disk b b when the bang is withdrawn fr0m the cask.

The advaatages 0f m y invention are cleanliness, eeonomyancl eonveaience in asing an elastic composition, aad greater dar.ability in asin g the metallic plate 01 disk in connection therewith, and is conspicaoasly asefal f'or casks aad barrels that; are ased repeatedly for the transportation 0f Ia-ger-beer, ales: &c.

My improved elastic bang with the metallic plate is practically indestractible, anal may be asecl repeatedly f0r years, thas saving the cost 0f woden bangs, which last only for a single ase.

While I prefer t0 ase rabber composition in making my elastic bang, I (10 not limit myself 130 tha1: material al0ne. I may ase any sabstance that is elastie, and make the bang of any desired shape or size. I. may also make the 1netallio plate or clisk 0f an y desired shape saitable to obta.in the resalts soaght after. q

Having tbas descnibed my invention, as aforesaid, I elaim as my inventioa and desire t0 secare by Letters Patent- An elastic bang having an apertare adapted in forn1 t0 deliver a plag inwardly, and having a permanentlyattaehed metallie gaard bearing 011 its apper sarface againsls the material 0f the bang, ancl having a portion 0f its under sarfaee exposed, as and for the parpose sei: forth. l

WILLIAM H. STEWART. Witnesses:

AUGTS. HAYWARD, C, B. RDJGWAY, WM. APGAR. 

